Ski with metal facing on the running surface



Dec. 2, 1941. H, KLEMM 2,264,535

SKI WITH METAL FACING ON THE RUNNING SURFACE Filed Deo. 30, 1959 Ha m75 "'e m m fnvenor:

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UNITED STATES PATENT OFFICE sm wrrn METAL FACING oN THE RUNNING summon Hanns Klemm, Boblingen, near Stuttgart, Germany, assignor to William Rhodes Davis, New York, N. Y.

Application December 30, 1939, Serial No. 311,780

V In Germany June 17, 1939 4 Claims. (Cl. 28o-11.13)

Skis are known which are provided on the lowlower surface of a wooden ski, so that the entire er side with a screwed-on metal facing which is ski then consists of metal-wood. The whole ski intended to permit stronger support and more then remains light, particularly as the glued-on secure guiding in the snow when travelling metal layer is also fully Supporting and the downhill, and which preserve the edges from 5 woodenskicanbe made correspondingly thinner. wear. The screwed-on metal facings, which To produce such a ski, the metal covering, usually consist of sheet brass about 0.8 mm. in whether it is intended as a covering for the enthickness, have the disadvantage that when the tire lower surface of the ski or only for the side ski is greatly bent they stretch slightly and then, edges. iS out from thin metal-Wood and then on occasion, come away from the wooden portion l glued by itS Wooden Side to the lower Side 0f the of the ski between the individual screws, which ski. are arranged at intervals of about cm. Mois- Referring to the drawing left herewith. Which ture then penetrates easily between the metal ShOWS eS an exemple. Several forms of Skis emcovering and the wood, and the wood therefore bodying the invention: begins to rot at those points. In addition, bent l5 Fig. 1 shows a, ski in side elevation. metal faces are also a hindrance to skiing. Figs. 2 to 5 show various cross-sections of skis.

According to the invention, I provide a ski Aeeording to Fig. 1, the ski consists of the usuwith a metal facing on the running surface, al suitably bent wooden strip l; With the ous'- characterised in that the metal covering consists tomary binding 2, and a covering 3-4 glued of sheet metal with wood glued-on under pres- 2o therebeneath and consisting of metal-wood. that sure, hereafter referred to as metal-wood, and iS t0 Say, e Strip 0f Sheet metal 3 With a thin the wooden surface of this metal-wood is glued layer of wood 4 glued thereon under Pressure. to the underneath or running surface of the The Sheet metal Coating iS about 0-5 to 1 mmwooden body of the ski. Screw unions are thus in thickness and Consists of a. steel, for example superfluous and the metal covering is unitedin.. non-corrosive chrome-nickel steel, Vbrass or aff" tegrally and tightly at al1 points to the wooden hard aluminum alloy. The Wood layer, about/f1 body of the ski, so that, when the ski is subjectt0 4 mmin thickness, may eOnSiSt 0f ash W/,OOd ed to intense bending, the metal facing cannot f01' exemple, While the body l 0f the Ski may'also become detached therefrom and warp at certain COnSiSt 0f eSh WOOd 01' elSe 0f hiCkOry. (At the points, and no moisture can penetrate between ends, the metal-Wood 3 4 may* also ghe addithe metal covering and the wood and cause rot. tienallyrseeured by Wood Screws 5 to the part l. The metapwood can conveniently consist of a Fig. 2 shows a cross-section of such a ski, in sheet of stee1, for example (non-corrosive which the metal-wood covering -3-4 extends chromenicke1 steel), or brass or a hard alumi- Over the entire Width 0f the Skinum alloy or the like, about 0.5 to 1 mm, 1n 35 Fig. 3 shows an embodimentinwhich the metthickness, while the wood layer of the metal- 2li-Weed Covering 3-4 extends from the two wood can conveniently be about 1 to 4 mm, in edges of the ski as far as a,y central guide chanthickness. nel 5- The meta] covering can advantageously ex- Fig. 4 ShOWS an embodiment in which the mettend almost, or completely, over the entire un. al-wood covering extends over the entire width dei-face of the ski, so that the said lower face eiof the ski and the metal-wood is pressed inw the ways remains very smooth and, under certain guide Channel circumstances, requires no waxing. A further Fig. 5 Shows an embodiment in which the met.. advantage is that scoring is thereby eiectively itl-W001i Covering 1S previded only at the edges prevented, of the body I of the ski. Instead of the metal- The metal covering may extend from the side Wood 34, Only a Sheet metal covering 3 may edges of the ski as far as a. central guide channel, be used in all cases, which is glued under presor the metal-wood may also be pressed or shaped Sure directly on to-the body I of the ski, so that, to form a central guide channel, and the coverif desired, the entire ski, or its edges only, coning shaped in this manner may then be glued on sists or consist of metal-wood. to a ski provided with a corresponding guide For production purposes, the metal-wood cov. channel. ering is preferably cut or stamped out of a In another embodiment, a simple metal covmetal-wood plate and then glued under presering (that is to say, without a layer of wood) sure on to the body I of the ski. A simple sheet may be glued directly under pressure on to the metal covering can also be glued on to the ski.

The front and rear ends of the metal wood or sheet metal covering are preferably also secured with some few wood screws before the cementing medium has hardened. Phenol resins. cold glue and the like can be used as cementing medium between the metal-wood and `the wooden ski. For the direct union of sheet metal and wood, cementing media, such as that known under the name of Meta1lf1x," and the like can be used.

I claim: a

1. A ski comprising a wooden body. and a preformed unitary metal and wood lamination glued with its wood surface to the underneath surface of the ski.

2. A ski as claimed in claim 1. wherein said preformed unitary metal and wood lamination covering extends substantially over the entire under surface of the ski.

3. A ski as claimed in claim 1. wherein said preformed unitary metal and wood lamination covering extends from the two edxes of the ski up to a central guide channel.

4. A ski as claimed in claim 1, wherein said preformed unitary metal and wood lamination covering extends over the whole under surface of the ski and is pressed into a central guide channel.

HANNB KLEMM. 

